Spray mask



FIG. 1 is a perspective view of a spray mask showing my new design.

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof; and

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a spray mask, substantially as shown. 